Marine water-closet



Aprll 26, 1927. U G. LEE

M ARINE WATER CLOSET Filed Nov. 20, 1926 2 Sheets-Sheet 1 Iii-I D I8 CHARGE I nueni'or:

Ulysses G. 11,

y a wwtji Patented Apr. 26, 1927.

UNITED STATES PATENT OFFICE.

marssns o. LEE, or GHIGAGO, rumors, ASSIGNGLR; T0113. e. LEE & co. and), or CHICAGO, InLnvors, A oonronn'rron or rnnnvors.

MARINE WATER-CLOSET.

Application filed November 20, 1926.

My present invention relates to improvements in water closets designed more especially for marine use and of the type using bowl supply and ed'uction pumps, such as disclosed in my United States application Serial No. 80,030, filed January 8th, 1926.

The invention aims to providean exceedingly simple and economical construction and one which will not be liable to become clogged, and which, in the event of stoppage, can be easily cleaned out; and the invention includes the novel construction hereinai'ter described and defined by the appended claims.

An embodiment of the invention is shown in the accompanying drawings, in which Figure 1 is a rear elevation partly in section.

Fig. 2 is a section on line 2-2 of Fig. 1, and

Fig. 3 is a View looking from the left of Fig. 1 with the motor and covering case removed.

Referring by reference characters to these figures, the numeral 1 designates the closet bowl having the customary annular flushing rim or conduit 1 communicating with the bowl by the openings or water passages a.

The base is formed with a rearwardly (right Fig. integral shelf portion 1 which serves as a support for the flushing meclianism hereinafter described. This comprises a pump casing including the passages leading to and from the same and a bed plate (all formed integral), the latter being adapt ed to be bolted or otherwise suitably secured to the shelf 1", and to, in turn, support the motor 4, shown conventionally as an electric motor.

The pump casing 2 is divided by a partition 2 into two compartments 2 and 2 which contain respectively the supply and eduction pumps 5 and 6. The motor is connected by a suitable flexible coupling to a pump shaft 4 passing through a suitably packed opening in the wall oi the pump casing, which pump shaft carries one of the rotary elements 5 of the supply pump which is of the gear type as clearly shown in Fig. 3. The shaft also passes through an opening in the dividing wall or partition between the two pump chambers and terminates in this latter chamber and its end carries the educ- Serial No. 149,687.

tion pump 6 which is of the rotary bladed impeller type such as disclosed in my aforesaid. application.

Flushing water is led to the supply pump by a supply pipe 5 having its end tapped into an opening in the pump'casing, and the supply pump chamber is also in communication with the flushing channel or rim of the bowl by the short pipe member 11. Due to the fact that the inlet pipe 5 and outlet 11 arehoth located above the axis of the gear pump, the latter is thus always primed- The outlet pipe. 1 from the bowl communicates with a corresponding passage 6 which extends up to a point opposite the end of the pump shaft and communicates with the chamber 01' the eduction pump 6.

This eduction pump, being of the bladed or impeller type, tends to break up sewage, but to further and initially assist in this breaking up action I provide the hub of the impeller with projections 6 and the wall of the pump chamber with coacting projections 2 lVit-h this construction it is impossible for the discharge pipe from the eduction pump casing to become clogged as the sewage is thoroughly broken up before passing the pump, and if there is any clogging it can only occur in the intake to the eduction pump due to the presence of cloth or other articles accidentally or carelessly dropped into the bowl.

In my present closet I provide for the ready removal of such objects by extending the bowl eduction passage up opposite the intake eye of the pump as shown in Fig. 7

1, and providing it at the upper end with a removable closure plug 6 of large diameter, on the removal of which the eduction passage may be readily cleared.

The outlet side of the eduction pump communicates by way of check valve 10 with discharge passage 10 and discharge pipe 10.

This closet is designed to have the same intermittent action as that described in my aforesaid application and to that end the cductiou pump is made oi greater capacity than the supply pump and a restricted port 20 is provided extending from the discharge pump intake to the discharge passage of the supply pump to allow for the removal of air from the discharge pump intake periodically.

Having thus described my invention, what I claim is:

1. In a marine water closet, a boWl having inlet and outlet passages, supply and eduction pumps in said passages, the eduction passage having a clean out plug adjacent the intake of the eduction pump.

2. In a marine Water closet, a bowl, a water supply thereto, an eduction pump of the rotary impeller type having its intake connected with said bowl, said connection overlying the intake ot the pump and having a clean out plug at its upper end.

3. In a marine Water closet, a bowl having inlet and outlet passages, supply and eduction pumps in said passages, and comprising rotary elements located on a single shaft, the edurtion pump being; located on the end of the said shaft.

4. In a marine water closet, a bowl having inlet and outlet passages, supply and eduction pumps in said passages, and comprising rotary elements located on a single shaft, the edurtion pump being located on the end of the said shaft, and the eduction passage having a clean out plug adjacent the intake of the pump.

5. In a marine water closet, the combination with the bowl having a shelf-like rojection, of a one piece casting supporte by said shell and comprising a motor base and supply and eduction pump chambers and passages thereto, supply and eduction pumps in said chambers, and a motor supported by said base and operatively connected to both said pumps.

6. In a marine Water closet, the combiuation with the bowl having a shelf-like projection, of a one piece casting supported by said shelf and comprising a motor base and supply and cduction pump chambers, and passages thereto, supply and eduction pumps in said chambers, a pump shaft driven by said motor and carrying supply and eduction pump elements, the eduction pump element being located on the end oi said shaft and the adjacent intake passage having a clean out plug.

In testii'nony whereof, I altix my signature.

ULYSSES G. l JEl'C. 

